Spring attachment for pumps.



J. 0. BANE.

SPRING ATTACHMENT FOR PUMPS.

APPLIGATION IILED JUNE 17, 1914.

1,133,695. Patented Mar.30,1915.

" amantoz wvbbmamp I Jame/y Maw 5%., M m j 6 imzza GMM13 THE NORRIS PETERS CO" PHOTUYLITHQ. WASHINGTON, 1. C,

- UNITED sTA'rns PATENT OFFICE.

amiss o. BANE, or s1. PAUL, MINNESOTA.

SPRING ATTACHMENT FOR PUMPS.

To all whom it may concern Be it known that I, JAMns O. BANE, a citizen of the United States, residing at St. Paul, in the county of Ramsey andState of Minnesota, have invented certain new and useful Improvements in Spring Attachments for Pumps, of which the following 1s a specification. v

This invention relates in general to pumps, and its object is to adapt a spring balancing device to be attached to either a hand pump or to a power pump, or to a pump that is provided with a pumpack adapting it to be operated by elther hand or power.

To this end my invention consists 1n the construction and combination of parts forming a spring attachment for pumps hereinafter more fully described and particularly stated in the claims, reference being had to the accompanying drawings, in which:

Figure 1 shows a side View of a pump adapted to be operated by either hand or power, according to my invention. Fig. 2 is a top view of the spring-supporting bar. Fig. 3 is a side view of the same crossbar. Fig. 4 shows a longitudinal vertical section of the lower tang of the joint at line 00, Fig. 2. Fig. 5 shows a transverse vertical section at line 3 Fig. 2.

Numeral 6 represents a pump body mounted on any style of base 7. The pump handle 8 is pivoted to a pitman 9 that is pivoted at 10 to an ear of the pump cap 11 that is firmly yet removably attached to the body 6. The handle 8 is pivotally connected at 12 with the piston rod 13, and 14 is an arm rising from the cap 11 as a guiding bearing for the piston rod. A common hand pump has thus far been described. In order to adapt such pumps to be operated by power, a device called a pump ]ack 1s secured to the pump. This pump jack may comprise a pulley 15 adapted to be run by a belt from any source of power, such as an engine or a wind-mill; a crank plate 16 having holes at difierent distances from its center to receive the wrist 17, whereby the length of the crank stroke may be regulated to suit differing conditions of work; and gears 18, 19 may be proportioned to communicate the desired ratio of speed between the shafts of the pulley 15 and the crank plate 16. A pitman arm 20 connects the crank 17 with the piston rod 13 at 21 so that revolu- Specification of Letters Patent.

tions of the crank will produce the usual rec1procat1'ng motions of the piston rod.

The pitman 20 usually comprises two arms connected by a cross head 22, in which casethe gear wheel 18 serves as a crank plate carrying a wrist to mate the wrist 17, and an arm mating pitman arm 20 connects this second wrist with the cross head 22. The device, which is the principal characteristic of this invention, comprises two springs 23, each mounted between two arms 24: and 25. The arms 24: are connected with the piston rod 13 by means of a clip 26 that is adapted to be rigidly secured to either a round, square, or flat piston rod, and the arms 24: hook freely into the clip 26 near its edges. The pair of arms 25, being rigidly bound together, may be termed the supporting bar, as they rest on top of the arm 14, and support the springs 23 in their action. Two rods 27, each provided with a thumb nut 28 to regulate the tension of the springs, connect the arms 24: and 25 and serve as fulcra for the arms 24: when the latter are at work. The arms 24 and 25 are provided with lateral projections 30 and 29, respectively, each notched, as at 31, to receive the springs 23 and keep them in place. The arms 25 are mates, both being made from one pattern, and they have a peculiar joint comprising an upper tang 32 and a lower tang 33 on each arm; the lower tang being provided with a dowel stud 34: near one end, and the upper tang having a hole or socket 35 to receive the dowel of its mate; and each arm has two bolt holes which register when the mate arms are placed together, so that screw bolts 36, 37 may pass through to bind the arms as a rigid supporting bar. This style of construction insures an extremely strong joint. It enables the supporting bar to be attached to any pump by merely applying two bolts. It is economical because one pattern serves for casting, in steel or malleable iron, a great number of arms any two of which may be associated as a pair. In the common method of pumping water power is required only in the rising motion, and the downward motion is power and time wasted; but this device stores in the springs the force of the downward motion to aid in the upward or working motion, thus avoiding the destructive jolting action of the pump jack in which power is continuously applied throughout each circle of revolution.

Patented Mar. 30, 1915. Application filed June 7, 1914. serial No. 845,660.

I claim. I 1. In a spring attachment for pun1ps,-a spring-supporting bar comprising twoduplicate arms each of which has at its sides a pair of forwardly projecting tangs, one tang of a pair having at one end a stud and the other tang having at the other end a socket to receive a similar stud, and each tang having at one end a bolt hole, whereby the said studs and sockets will register with like sockets and studs and the said bolt holes will also duly register together when two of the said arms are brought together.

2. In a spring attachment for pumps,'the combination of a piston rod; a lever operating handle; a pair of spring-supporting arms firmly secured together and located in a the vertical plane of the said handle; two

arms freely connected with the piston rod and adjustably *connected with the first named arms; springs between the first named arms and the freely connected arms; a cross headisecuredito the piston rod, and a pump "jack comprising pitmen connected with the said cross, head, and driving Wheels connected with the saidpitmen by cranks; the cross head being connected with the piston rod in a vertical plane at right angles to "the vertical plane of the said springs and handle, whereby the pump may be operated by either the handle or the geth'er.

7 JAMES o. BANE.

Witnesses Y NEWTON FRos'r,

J.MCNAMARA.

Copies ofthis patent may be obtained forfive cents-each, by a'dd'iessing'the CommissionerofPatents,

' Washington, 110.

pump jack separately .or byboth acting to 

